Home / 1,214,724,901.67-1,676,321,980.94-657,808,909.19

Finding the Fourth Proportional to 1,214,724,901.67, 1,676,321,980.94 and 657,808,909.19

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Solution

The fourth proportional to 1,214,724,901.67, 1,676,321,980.94 and 657,808,909.19 is: 907,777,170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,724,901.67 : 1,676,321,980.94 = 657,808,909.19 : x
  2. Step 2: Convert to fraction form
    1,214,724,901.67/1,676,321,980.94 = 657,808,909.19/x
  3. Step 3: Cross multiply
    1,214,724,901.67x = 1,676,321,980.94 × 657,808,909.19
  4. Step 4: Simplify right side
    1,214,724,901.67x = 1,102,699,533,730,072,448
  5. Step 5: Solve for x
    x = 1,102,699,533,730,072,448/1,214,724,901.67
  6. Step 6: Final answer
    x = 907,777,170.13

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.